Lord Sovereign
The resident Britbong
Because McCarthy, bless his missguided soul, gave the scum an excuse to hide behind whenever they were called out for socialist behaviour. Had he not gone and started a witchhunt, we could've identitfied and removed commies, commie-sympathizers, and socialists quietly without anyone able to raise a fuss.
Whilst he is important, do remember that Commies had been doing shady shit years before McCarthy. I mean, I wasn't joking when I said a hundred years. They've been active in our institutions since the 1920s, if not earlier when counting the Fabian Society.